<template>
	<view class="normal-login-container">
		<view class="login-top">
			<view class="logo">
				<u-image :showLoading="true"
					src="https://henanhanyong1995.oss-cn-hangzhou.aliyuncs.com/WeChatUploadImg/logo.png" width="200px"
					height="200px"></u-image>
			</view>
			<view class="title" style="margin-top: -30px;">
				<text class="title_text">汉永报货平台</text>
			</view>
		</view>
		<view class="login-form-content">
			<view class="input-item flex align-center">
				<view class="iconfont icon-user icon"></view>
				<input v-model="loginForm.username" class="input" type="number" placeholder="请输入手机号" maxlength="11" />
			</view>
			<view class="action-btn" style="padding-top: 40px;">
				<u-button @click="handleLogin" type="warning">登录</u-button>
			</view>
			<view class="reg text-center" v-if="register">
				<text class="text-grey1">没有账号？</text>
				<text @click="handleUserRegister" class="text-blue">立即注册</text>
			</view>
			<view class="xieyi text-center">
				<checkbox-group @change="checkboxChange">
					<checkbox value="1" style="transform:scale(0.7)" />
				</checkbox-group>
				<text class="text-grey1">勾选即代表同意</text>
				<text @click="handleUserAgrement" class="text-orange">《用户协议》</text>
				<text @click="handlePrivacy" class="text-orange">《隐私协议》</text>
			</view>
		</view>
	</view>
</template>

<script>
	import {
		getCodeImg
	} from '@/api/login'

	export default {
		data() {
			return {
				codeUrl: "",
				captchaEnabled: false,
				// 用户注册开关
				register: false,
				globalConfig: getApp().globalData.config,
				checkboxType: "",
				loginForm: {
					username: "",
					password: "",
					code: "",
					uuid: "",
					openId: ""
				},
				openId: undefined,
			}
		},
		created() {
			const token = uni.getStorageSync('token');
			if (token) {
				// 自动登录
				this.$store.dispatch('AlreadyLogin', token).then(() => {
					this.$store.dispatch('GetInfo').then(() => {
						this.$tab.reLaunch('/pages/index');
					});
				}).catch(() => {
					// 自动登录失败，重新获取验证码
					if (this.captchaEnabled) {
						this.getCode();
					}
				});
			} else {
				// 没有保存的登录信息，正常获取验证码和进行微信登录
				// this.getCode();
				this.wxLogin();
			}
		},
		methods: {
			wxLogin() {
				let that = this
				// 客户端获取 code
				wx.login({
					success: function(res) {
						if (res.code) {
							// 发送 res.code 到后端
							uni.request({
								url: that.globalConfig.baseUrl + '/data/show/getOpenid/' + res.code,
								method: 'GET',
								success: (res) => {
									that.openId = res.data.openId
									if (res.data.token != undefined) {
										that.$store.dispatch('AlreadyLogin', res.data.token).then(
											() => {
												that.loginSuccess()
											}).catch(() => {
											if (that.captchaEnabled) {
												that.getCode()
											}
										})
									}
								},
								fail: (err) => {
									console.log('获取 openid 失败', err);
								}
							});
						} else {
							console.log('登录失败！' + res.errMsg);
						}
					}
				});
			},
			// 用户注册
			handleUserRegister() {
				this.$tab.redirectTo(`/pages/register`)
			},
			// 隐私协议
			handlePrivacy() {
				let site = this.globalConfig.appInfo.agreements[0]
				this.$tab.navigateTo(`/pages/common/webview/index?title=${site.title}&url=${site.url}`)
			},
			// 用户协议
			handleUserAgrement() {
				let site = this.globalConfig.appInfo.agreements[1]
				this.$tab.navigateTo(`/pages/common/webview/index?title=${site.title}&url=${site.url}`)
			},
			// 获取图形验证码
			getCode() {
				getCodeImg().then(res => {
					this.captchaEnabled = res.captchaEnabled === undefined ? true : res.captchaEnabled
					if (this.captchaEnabled) {
						this.codeUrl = 'data:image/gif;base64,' + res.img
						this.loginForm.uuid = res.uuid
					}
				})
			},
			// 登录方法
			async handleLogin() {
				if (this.loginForm.username === "") {
					this.$modal.msgError("请输入您的手机号")
				} else if (this.checkboxType != "1") {
					this.$modal.msgError("请勾选用户协议，隐私协议")
				} else {
					this.$modal.loading("登录中，请耐心等待...")
					this.pwdLogin()
				}
			},
			// 密码登录
			async pwdLogin() {
				this.loginForm.openId = this.openId
				//获取到传递的OpenID
				this.loginForm.openId = uni.getStorageSync("openId");

				this.$store.dispatch('LoginByTel', this.loginForm).then(() => {
					this.$modal.closeLoading()
					this.loginSuccess()
				}).catch(() => {
					if (this.captchaEnabled) {
						this.getCode()
					}
				})
			},
			// 登录成功后，处理函数
			loginSuccess(result) {
				// 设置用户信息
				this.$store.dispatch('GetInfo').then(res => {
					// 保存登录信息到本地存储
					uni.setStorageSync('token', this.$store.state.user.token);
					this.$tab.reLaunch('/pages/index')
				})
			},
			//是否选中
			checkboxChange(e) {
				this.checkboxType = e.detail.value;
			}
		},
	 mounted() {
	    const urlParams = new URLSearchParams(window.location.search);

		const phoneNumber = urlParams.get('phoneNumber');
		const openId = urlParams.get('openId');
		//将OpenID保存在全局中
		uni.setStorageSync('openId',openId);
		if(phoneNumber != null && openId != null){
			this.loginForm.username = phoneNumber;
			this.pwdLogin();
		}
	  },
	}
</script>

<style lang="scss">
	page {
		background-image: url('https://henanhanyong1995.oss-cn-hangzhou.aliyuncs.com/WeChatUploadImg/login_bg.jpg');
		background-size: cover;
		background-repeat: no-repeat;

	}

	.normal-login-container {
		width: 100%;
		text-align: center;

		.logo {
			display: flex;
			justify-content: center;
		}

		.title {
			font-size: 30px;
		}

		.logo-content {
			width: 100%;
			font-size: 21px;
			text-align: center;
			padding-top: 15%;

			image {
				border-radius: 4px;
			}

			.title {
				font-size: 36px;
				color: #fff;
				margin-left: 10px;
			}
		}

		.login-form-content {
			text-align: center;
			margin: 20px auto;
			margin-top: 15%;
			width: 80%;

			.input-item {
				margin: 20px auto;
				background-color: #f5f6f7;
				height: 45px;
				border-radius: 20px;

				.icon {
					font-size: 38rpx;
					margin-left: 10px;
					color: #999;
				}

				.input {
					width: 100%;
					font-size: 14px;
					line-height: 20px;
					text-align: left;
					padding-left: 15px;
				}

			}

			.login-btn {
				margin-top: 40px;
				height: 45px;
			}

			.reg {
				margin-top: 15px;
			}

			.xieyi {
				color: #333;
				margin-top: 20px;
				display: flex;
			}

			.login-code {
				height: 38px;
				float: right;

				.login-code-img {
					height: 38px;
					position: absolute;
					margin-left: 10px;
					width: 200rpx;
				}
			}
		}
	}
</style>